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Opening cable sheath bending performance test device and test method

A testing device and a technology for bending performance, which are applied in the field of testing devices for bending performance of open cable sheaths and achieve the effects of easy popularization and application, simple structure and high reliability

Pending Publication Date: 2018-03-20
CHINA AERO POLYTECH ESTAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing bending test equipment is mainly for wires and cables, and there is no bending performance test device for open-type cable sheaths.

Method used

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  • Opening cable sheath bending performance test device and test method
  • Opening cable sheath bending performance test device and test method
  • Opening cable sheath bending performance test device and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The invention uses a servo motor reducer to drive a crank slider mechanism to control the rack position, and the rack drives the gear to rotate to control the position of the rocker. Using servo motor to drive the threaded structure to change the crank length can realize variable stroke output. Hereinafter, the present invention will be further described in detail through examples.

[0031] The bending performance test device of the open cable sheath of the present invention, such as Figure 1 to 7 As shown, it includes a rack unit, a drive unit and a swing unit. Among them, the rack unit is used to provide support for the drive unit and the swing unit and play a role of safety protection. The drive unit and the swing unit are fixed on the rack unit; the drive unit is used to provide a rotating power source for the swing unit; To realize the left and right swing of the rocker to test the bending performance of the open cable sheath.

[0032] The frame unit includes a supp...

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PUM

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Abstract

The invention provides an opening cable sheath bending performance test device which comprises a frame unit, a driving unit and a swing unit; and the driving unit and the swing unit are fixed on the working platform of the frame unit. The output shaft of a speed reducer in the driving unit is connected with a crank in a crank linkage mechanism, a connecting rod in the crank linkage mechanism is connected with a boss on a guide rail in the swing unit, and the boss is fixed with the guide rail. A rack in a rack and pinion mechanism is fixedly connected with a first sliding block, when in work, the connecting rod moves to drive the guide rail and the first sliding block to move simultaneously, before the rack reaches a limiting device, the first sliding block moves along with the guide rail,and the rack in the rack and pinion mechanism reciprocates transversely to drive the rotation of a pinion to realize the swing of a rocker. The invention also provides an opening cable sheath bendingperformance test method. The opening cable sheath bending performance test device can realize variable-angle variable-frequency reciprocated swing motion and can meet various complicated displacementor bending angle control requirements.

Description

Technical field [0001] The invention belongs to the technical field of component testing, and particularly relates to a testing device and a testing method for the bending performance of an open cable sheath. Background technique [0002] The open cable protective cover is a commonly used line protection device on aircraft, which has the characteristics of resistance to bending and scratching. Due to the flexibility of the cable, the opening protective cover is always prone to splay and damage during the bending process. With the advancement of product technology, the new open cable protective cover has clear technical indicators for bending resistance. However, the existing bending test equipment is mainly for wires and cables, and there is no bending performance test device for the open-type cable sheath. Currently, there is an urgent need for a testing device and method to test the bending resistance of the open sheath. Summary of the invention [0003] This application is de...

Claims

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Application Information

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IPC IPC(8): G01N3/20
CPCG01N3/20G01N2203/0005G01N2203/0023
Inventor 李伟力刘明明张辉王珏
Owner CHINA AERO POLYTECH ESTAB
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